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Mathematics Online: Internet Seminar for a Tedious, Lonely Year
(MOISTLY)




Organiser: Henri Darmon.

Time. Thursdays 2:30-4:00 on line.

The goal of this discussion group is for us to keep speaking to each other regularly while continuing to follow the sound advice of our PM.

We will agree each week on one or two lectures to follow on line (either live lectures, usually taken from mathseminars.org or from the wealth of recorded lectures that various institutes have put on the web and which we never got around to watching in the busier pre-pandemic era.

The participant list is being kept deliberately small, to facilitate participation, but if you are interested in taking part please just contact me.


Participants

Lennart Gehrmann
Francesc Gispert-Sanchez
David Lilienfeldt
Isabella Negrini
James Rickards
Ricardo Toso
Ju-Feng Wu
Peter Xu




Program

Week of Thursday, April 23.
Romyar Sharifi, Eisenstein cocycles in motivic cohomology.
Jared Weinstein, Modularity for self-products of elliptic curves over function fields.

Week of Thursday, April 30.
Jeremy Teitelbaum, The p-adic upper half plane. (From the archives of the AWS)

Week of Thursday, May 7.
Bas Edixhoven. Geometric Quadratic Chabauty.
Jan Vonk. Singular Moduli for Real Quandratic Fields.

Week of Thursday, May 14.
(Guest participant: Michele Fornea)
Michele Fornea. Hirzebruch-Zagier classes and rational elliptic curves over quintic fields.
Mladen Dimitrov. A geometric view on Iwasawa theory.
Continuation of our discussion of Vonk from the previous week.

Week of Thursday, May 21.
Teitelbaum 3 and Teitelbaum 4.

Week of Thursday, May 28.
Teitelbaum 5.
Matteo Tamiozzo. Bloch-Kato special value formulae for Hilbert modular forms.

Week of Thursday, June 4.
(Guest participant: Samit Dasgupta)
Samit Dasgupta. Stark’s conjectures and Hilbert’s 12th Problem on Monday at 10:30 AM in th Barcelona number theory seminar.

Week of Thursday, June 11.
We will discuss the lecture by Jens Funke on singular theta lifts in Barcelona (again!) on Monday at 10 AM, which is listed on mathseminars.org.

Week of Thursday, June 18.
We will discuss Nicolas Bergeron's first Takagi lecture.
From the cornucopia of mathseminars.org lectures for this week, the following were singled out in our discussions last week. Deciding which ones to watch confronts us with difficult choices, and we can only advise against the solomonic solution of watching none at all. I hope that each of these will be watched by some of us, who can report briefly if they learned anything interesting.
Saturday, 11:15 AM. Wanlin Li's lecture on the Ceresa class.
Monday, 7:30 AM The lecture of Claudia Alfes-Neumann; making up for the uncivilised time, it looks extremely interesting...
Monday, 10:00 AM. The lecture of Carl Wang-Erickson.

Week of Thursday, June 25.
We are going to attempt a "QVNTS day" inspired by the pre-pandemic format:

10:30-11:30. Gautier Ponsinet, TBA, followed by discussion, 11:30-12:00.

12:00-2:00. Picnic style lunch on the McGill campus. (For those of you who might have forgotten: this is like a zoom lunch, but without the computers and internet connections.)

2:00-3:00. Haining Wang, followed by discussion, 3:00-3:30.



Week of Thursday, July 2.
This week our discussion will be devoted to the ANTS meeting, which I encourage you to register for, and to attend the lectures that you find most appealing. James will probably be the one attending the most talks and will give us a summary.

On Wednesday, 9:00 AM, there will be a lecture in Darmstadt by Hao Zhang which I plan to attend and strongly recommend.

I propose that we again try to meet together physically for lunch on the campus of McGill, at around 12:15, weather permitting.


Week of Thursday, July 9.
This week a few lectures on mathseminars.org caught our attention:

For the insomniacs among us, the lecture of Rene Schoof on Tuesday at 4 AM.

The Darmstadt lecture of Shaul Zemel on Wednesday at 9 AM.

The lecture of Yiwen Ding on Wednesday at 10 AM.

The curve of infection and hospitalisation rates among our discussion group participants remains encouragingly flat, so let's meet together for lunch on the campus of McGill at around 12:15, weather permitting.


Week of Thursday, July 16.
A perusal of mathseminars.org suggests that our colleagues around the world are feeling the need for a summer break. This is an excellent time to delve into the vaunted Venkatesh videos that many of you have been clamoring for!

I propose that we watch Venkatesh's lecture at IHES on derived Hecke operators in the setting of forms of weight one, which has the virtue that this is an aspect I can tell you about. David Marcil will make a guest appearance and give us a 15-20 minute presentation of his work testing the Harris-Venkatesh conjecture for exotic weight one forms.

While I was making my google search, I stumbled on this colloquium-style talk at the IAS and couldn't resist assigning it: it looks like something that might lift our morales, which are often in need of lifting these days!

Finally, some of us expressed interest in the lecture of Jenn Balakrishnan in the Number theory web seminar, on Thursday at 11:00, hence, right before our lunch.

We will meet as usual for lunch at around 12:15 and then repair to our zoom screens for the scientific discussion in the afternoon.


Week of Thursday, July 23.
Three possible topics for our discussion were proposed:

(a) Akshay Venkatesh's lecture at IAS on derived Hecke operators, which I watched over the weekend and found extremely enjoyable. It is two hours long, and the first in a three part series, so could be the focus of future exchanges of course.

(b) The lecture of Jenn Balakrishnan in the Number theory web seminar from last week was greatly appreciated by those of us who watched it, and perhaps those who didn't could catch up since it is recorded for posterity, and we could eventually discuss it, with David taking the lead.

(c) There will be a lecture on Thursday morning at 9:30 AM in the Virtual Analytic Number Theory Local Seminar by Angelos Koutsianas on ``Solving generalized Fermat equations with Frey hyperelliptic curves". You should all have received the ``secret" zoom link, just let me know if you didn't.

We will meet as usual for lunch on Thursday at around 12:15 and then repair to our zoom screens for the scientific discussion in the afternoon.